Home / 935,078.64-1,290,414.44-505,357.76

Finding the Fourth Proportional to 935,078.64, 1,290,414.44 and 505,357.76

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Solution

The fourth proportional to 935,078.64, 1,290,414.44 and 505,357.76 is: 697,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,078.64 : 1,290,414.44 = 505,357.76 : x
  2. Step 2: Convert to fraction form
    935,078.64/1,290,414.44 = 505,357.76/x
  3. Step 3: Cross multiply
    935,078.64x = 1,290,414.44 × 505,357.76
  4. Step 4: Simplify right side
    935,078.64x = 652,120,950,870.06
  5. Step 5: Solve for x
    x = 652,120,950,870.06/935,078.64
  6. Step 6: Final answer
    x = 697,396.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.